I have just bought the LX.AX90X.017 model and the spec and price are unbeatable in stores (from what I have seen).
AMD MK-36 2.00GHz Processor
15.4" WXGA CrystalBrite Widescreen TFT Display
120GB Hard Drive
1024MB DDR II RAM
DVD-RW Super Multi Drive
ATI Radeon Xpress 1100 Graphics
Integrated 0.3 Megapixel Camera
Battery: 6 cell
5-in-1 Card Reader
Integrated Wireless WiFi Connectivity
Microsoft Windows Vista Home Premium Edition
I just thought I would share this as I have found it hard to find a good spec laptop sub £400. I know it is not a dual core but it does have a faster processor and if you are not going to be heavily multi tasking it does not make a difference.
One thing to watch is the customer service so far sucks. The website does not update your order but I ordere mine on Saturday and it did arrive bang on time.